Hull of vessels.



No. 874,031- PATENTED'DEG. 17, 1907.

I. E. PALMER.

HULL OF VESSBLS.

APPLIOATION FILED JAN. 12. 1904.

Wihemream I through soizkets 12,, 13, in the stem 0 the eratin mechanis v lemon. PALMER, OF MIDDLETOWN, CONNECTICUT.

HULL or VESSELS.

I Specification of Letters Patent.

Patented Dec. 17, 1907.

Application filed January 12.1904. Serial No. 188.708-

To all whom it m concern.

Be it known that I, Isaac E. PALMER, a

citizen of the United States, and resident of Middletown, in the county of Middlesex and State of Connecticut, have invented new and useful Hulls of Vessels, of which the following is a specificationl My invention relates to hulls of vessels, with the object in'view of rendering them more stable under sail pressure or in sea-way or in both. v v

In the accompanying drawin s, Fi re 1 is a view in side elevation of t e hu of a vessel embodying my invention, Fi 2 is a bottom plan view of the same, an Fig, 3 is a stern view of the same.

The type of hull which I have chosen to illustrate my invention is a modern keel boat intended to be propelled by sail ower alone, but it is to be understood that t e invention ma be applied to ower propelled craft as wel as those pro el ed by sail power.

The body of t e hull 1s denoted by 1, its

keelby 2 and its rudder by 3. Wings 4, 5,

consisting of thin flat plates and provided with forwardl extendm shanks 6, 7, are hinged at the orward en s of the shanks, as shown at 8- and 9, res ectively, to opposite sides' of the keel 2. The said wings 4 and 5 are laterally disposed upon opposite'sides of the fore and, aft central vertical plane of I the hull and are preferabl located under the stern .of the vessel and be ow the water line. They are made vertically adjustable by means of rods 10 and'll hin ed to their upper faces, one to each, an exte'ndin up vessel and into engagementwith suitable op- In t e present instance I have shown opcrating1 levers, one, 14', for operating the rod -10 an These levers 14 and 15 are independently one, 15, for operating the-rod 11;

fulcrumed on a post 16 fixed on the stern of the vessel, and each is provided with an elongated slot 17 thro h which the upper end of the operating ro is connected to the lever by a iuitable pin 18 to permit the lever to swing without bendi the rod. The levers 14, 15, are locked in their difl'erent s ad'ustments by 'means of pins 19 carried by t e levers and adapted to slide into and out of holes 20 in a perforated plate 21, attached to the post 16.

In sailing craft when the pressure on the sail tends to heel the boat over at an acute angle to the water level, the wing on the leeward side, the wing 5, for example, may be lowered into a slanting position as shown in dotted lines, Figs. 1 and 3, and the forward movement of the hull will tend to produce an upward pressure on the wing 5 and hence on t e lower side of the hull, tendi to right the hull into a level or nearer a love position.

When the hull is being forced forwardly on an even keel, as by power, the two wings may be slightly lowered and the tendency willbe' to lift the stern andprevent squatting.

When there is no need of lowering the one or the other or both tovlevel the hull, the two act as a preventer to keep the boat from pitchin in sea-wa as the sternwill be pre- 1 vented om a sud en lift by the water above the wings and from a sudden depression by the water below the The win may,

either one or both of them, be lifted Into an position above the suru wardly slantin P g so desired to relieve the face of the water if drag.

It is obvious that changes might be resort- .ed to in the form and arrangement of the several parts without departing from the spirit and scope of my invention; hence "I do not wish to limit myself strictly to the structure herein shown and described, but

What I claim is The combination with the hull of a vessel, of wings inde endently movable in-a 'vertical direction an means for raising and lowering the said wings and for loc them in the desired adjustment, the said wings beingfun ed one on each of the opposite sides the eel, their shanks exten wardl along and t e blades of t e gradually extending laterally as they 'pass under the overhangingstern of the vessel on opposite thence rearsides of the central. vertical longitudinal plane thereof. 1

In-testi'mony, that I claim the foregoing as myinvention, I have signed my name in Bresence of 'two witnesses,

ecember 1903,,

ISAAC E.PA1ME1I Q Witnesses:

Onas. M; Sums, E. H. Tasman;

the oplposite sides of the keel as this 31st day of 

